Oddly, I see the opposite . Choose edit-with (TIFF) and Affinity, save the image without having made any edits, and the resulting file viewed in CO12 is sometimes a stop underexposed. This is with HiRes mode images with the E-M1 II.

In my case it is more an annoyance than a problem, as it does not look like there is any value clipping in the shadows - and a simple exposure adjustment fixes the problem.

Viewing the image after exporting it and sending it back from Affinity what ICC profile is reported?

There are 2 parts possible to Proofing.

You can set a value for a Proof Profile to use to see what an image might look like when printed (for example). This can be any profile available to your system.

Of you can activate the Recipe Proofing option which will use the information in the currently active Output Recipe (which will also make use of the specified ICC profile in the recipe but also adds some other simulated adjustments for sharpening and takes into account any crop factors.).

Based on what you observed about the issue appearing after creating a new recipe it would be logical to check and understand what may be going on with that (or those since you have first an output and then revisit the image when it is returned) in the first instance.

SFA wrote:Does the exposure look about right when first opened in Affinity?

Yes

SFA wrote:What changes do you make in Affinity?

I only use it when C1 can't handle a blemish, and use its Inpainting Brush tool. Otherwise, I do 99% of my processing in C1.

SFA wrote:Viewing the image after exporting it and sending it back from Affinity what ICC profile is reported?

ProPhoto.

SFA wrote:There are 2 parts possible to Proofing.

You can set a value for a Proof Profile to use to see what an image might look like when printed (for example). This can be any profile available to your system.

Of you can activate the Recipe Proofing option which will use the information in the currently active Output Recipe (which will also make use of the specified ICC profile in the recipe but also adds some other simulated adjustments for sharpening and takes into account any crop factors.).

Based on what you observed about the issue appearing after creating a new recipe it would be logical to check and understand what may be going on with that (or those since you have first an output and then revisit the image when it is returned) in the first instance.

Oops! I obviously haven't made myself clear on that last point. The issue seems to have appeared without any action on my part - or at least, any action I can recall.

I'm not aware of there being an interaction between recipes and round-tripping - though I'll happily be put straight on that if needs be. Doesn't C1 simply create a file based on the settings which pop up after you select "Edit with"?

ShaneB wrote:Oops! I obviously haven't made myself clear on that last point. The issue seems to have appeared without any action on my part - or at least, any action I can recall.

I'm not aware of there being an interaction between recipes and round-tripping - though I'll happily be put straight on that if needs be. Doesn't C1 simply create a file based on the settings which pop up after you select "Edit with"?

Regards

The use of proofing in not connected to output processing other than in terms of the results of the interpretation presented in the screen.

So if you have Recipe Proofing turned on when viewing the file try turning it off and vice versa. (The C1 version, the C1 output version and the returned Affinity version. This is all part of trying to identify where the apparent changes occur and what factors might be involved.)

In more general terms what do you have set for Proof Profile (not necessarily the same as Recipe Profile).

At this point don't worry too much about whether or not you can think of anything that has changed - in terms of working out where the difference comes from that is probably just a distraction.

SFA wrote:So if you have Recipe Proofing turned on when viewing the file try turning it off and vice versa. (The C1 version, the C1 output version and the returned Affinity version. This is all part of trying to identify where the apparent changes occur and what factors might be involved.)

In more general terms what do you have set for Proof Profile (not necessarily the same as Recipe Profile).

At this point don't worry too much about whether or not you can think of anything that has changed - in terms of working out where the difference comes from that is probably just a distraction.

Thanks Grant

Ok, I just tried round-tripping from C1 to Affinity Photo using three different proof profiles: one of my output recipes, the ProPhoto RGB Output profile and the "Managed by printer (no proofing)" profile. The same result in each case: around 0.8 stops over-exposed.

At the end of the day, it's no big deal - I don't round-trip very often and I can manually bring the exposure back. It's simply annoying - and weird that this should have started with no obvious cause.